diff --git a/manuscript/markdown/mainmatter/0.the-big-idea/2.javascript-algebras.md b/manuscript/markdown/mainmatter/0.the-big-idea/2.javascript-algebras.md
index 42a814a..0c71d2c 100644
--- a/manuscript/markdown/mainmatter/0.the-big-idea/2.javascript-algebras.md
+++ b/manuscript/markdown/mainmatter/0.the-big-idea/2.javascript-algebras.md
@@ -73,7 +73,7 @@ Functions that compose and transform other functions allow us to build functions
 
 Functions that compose and transform functions into other functions are very powerful, but things do not stop there.
 
-It's obvious that functions can take objects as arguments and return objects. Functions (or methods) that take an object representing a client and return an object representing and account balance are a necessary and important part of software.
+It's obvious that functions can take objects as arguments and return objects. Functions (or methods) that take an object representing a client and return an object representing an account balance are a necessary and important part of software.
 
 But just as we created an algebra of functions, we can create an algebra of objects. Meaning, we can write functions that take objects and return other objects that represent a *transformation* of their arguments.